Muscles of Pelvis & Lower Extremity Flashcards
(179 cards)
1
Q
What muscles form the Iliopsoas
A
Psoas major, psoas minor and Iliacus
2
Q
O of Psoas Major m.
A
Transverse process & Bodies of lumbar vertebrae
3
Q
I of Psoas Major m.
A
Lesser trochanter of femur (fusing with iliacus)
4
Q
Action of Psoas Major m.
A
Flexion & lateral rotation of thigh at hip jnt. & and flexion of trunk on hip
5
Q
Innervation of Psoas Major m.
A
Lumbar spinal n.L2-L3
6
Q
O of Psoas Minor m.
A
12th thoracic & 1st lumbar vertebrae
7
Q
I of Psoas Minor m.
A
Iliopectineal line or fused with psoas major
8
Q
Action of Psoas Minor m.
A
Flexion of pelvis on abdomen
9
Q
Innervation of Psoas Minor m.
A
Lumbar plexus
10
Q
O of Iliacus m.
A
Iliac fossa & sacrum
11
Q
I of Iliacus m.
A
Tendon of psoas major into lesser trochanter of femur
12
Q
Action of Iliacus m.
A
Flexion & lateral rotation of thigh at hip jnt.
13
Q
Innervation of Iliacus m.
A
Femoral n.
14
Q
O of Gluteus maximus m.
A
Iliac crest , posterior gluteal line, sacrum & coccyx
15
Q
I of Gluteus maximus m.
A
Iliotibial tract of tensor fascia latae & gluteal tuberosity of femur
16
Q
Action of Gluteus Maximus m.
A
Extension & lateral rotation of thigh
17
Q
Innervation of Gluteus Maximus m.
A
Inferior gluteal n.
18
Q
O of Gluteus Medius m.
A
Ilium between anterior & posterior gluteal lines
19
Q
I of Gluteus Medius m.
A
Greater trochanter of femur
20
Q
Action of Gluteus Medius m.
A
Abduction & medial rotation of thigh
21
Q
Innervation of Gluteus Medius m.
A
Superior gluteal n.
22
Q
O of Gluteus Minimus m.
A
Ilium between anterior & inferior gluteal lines
23
Q
I of Gluteus Minimus m.
A
Greater trochanter of femur
24
Q
Action of Gluteus Minimus m.
A
Abduction & Medial rotation of thigh
25
Innervation of Gluteus Minimus m.
Superior gluteal n.
26
O of Tensor fascia latae m.
Anterior superior iliac spine & iliac crest
27
I of Tensor Fascia Latae m.
Iliotibial tract which attaches to lateral tibia
28
Action of Tensor Fascia Latae m.
Flexion & abduction of thigh at hip jnt.
29
Innervation of Tensor Fascia Latae m.
Superior gluteal n.
30
O of Piriformis m.
Anterior surface of sacrum
31
I of Piriformis m.
Greater trochanter of femur
32
Action of Piriformis m.
Lateral rotation & abduction of thigh at hip jnt.
33
Innervation of Piriformis m.
Sacral plexus
34
O of Superior Gemellus m.
Ischial spine
35
I of Superior Gemellus m.
Greater trochanter of femur
36
Action of Superior Gemellus m.
Lateral rotation & abduction of thigh at hip jnt.
37
Innervation of Superior Gemellus m.
Lumbosacral plexus
38
O of Obturator Internus m.
Inner surface of obturator foramen, pubis & Ischium
39
I of Obturator Internus m.
Greater trochanter of femur
40
Action of Obturator Internus m.
Lateral rotation & abduction of thigh at hip jnt.
41
Innervation of Obturator Internus m.
Lumbosacral plexus.
42
O of Inferior Gemellus m.
Ischial tuberosity
43
I of Inferior Gemellus m.
Greater trochanter of femur
44
Action of Inferior Gemellus m.
Lateral rotation & abduction of thigh at hip jnt.
45
Innervation of Inferior Gemellus m.
Lumbosacral plexus
46
O of Quadratus Femoris m.
Ischial tuberosity
47
I of Quadratus Femoris m.
Quadrate tubercule of femur
48
Action of Quadratus Femoris m.
Lateral rotation & stabilization of thigh at hip jnt.
49
Innervation of Quadratus Femoris m.
Lumbosacral plexus
50
O of Obturator Externus m.
Outer surface of obturator foramen & membrane
51
I of Obturator Externus m.
Trochanteric fossa of femur
52
Action of Obturator Externus m.
Lateral rotation & abduction of thigh at hip jnt.
53
Innervation of Obturator Externus m.
Obturator n.
54
What is the role of the lateral rotators
Steady the femoral head in acetabulum, therefore, stabilizing the hip joint
55
O of Sartorius m.
Anterior superior iliac spine
56
I of Sartorius m.
Proximal, medial surface of shaft of tibia
57
Action of Sartorius m.
Flexion, abduction & lateral rotation of thigh and flexion of leg at hip jnt.
58
Innervation of Sartorius m.
Femoral n.
59
O of Rectus Femoris m.
Anterior inferior iliac spine
60
I of Rectus Femoris m.
Patella via quadriceps tendon & then tibial tuberosity via patellar ligament
61
Action of Rectus Femoris m.
Extension of leg at knee jnt. & flexion of thigh at hip jnt.
62
Innervation of Rectus Femoris m.
Femoral n.
63
O of Vastus Lateralis m.
Greater trochanter and lateral margin of linea aspera of femur
64
I of Vastus Lateralis m.
Patella via quadriceps tendon & then tibial tuberosity via patellar ligament
65
Action of Vastus Lateralis m.
Extension of leg at knee joint
66
Innervation of Vastus Lateralis m.
Femoral n.
67
Action of Vastus Medialis m.
Extension of leg at knee jnt.
68
O of Vastus Medialis m.
Medial margin of linea aspera of femur
69
I of Vastus Medialis m.
Patella via quadriceps tendon & then tibial tuberosity via patellar ligament
70
Innervation of Vastus Medialis m.
Femoral n.
71
O of Vastus Intermedius m.
Anterior and lateral surfaces of shaft of femur
72
I of Vastus Intermedius m.
Patella via quadriceps tendon & then tibial tuberosity via patellar ligament
73
Action of Vastus Intermedius m.
Extension of leg at knee jnt.
74
Innervation of Vastus Intermedius m.
Femoral n.
75
O of Pectineus m.
Superior ramus of pubis
76
I of Pectineus m.
Pectineal line of femur, between lesser trochanter and linea aspera
77
Action of Pectineus m.
Flexion & adduction of thigh at hip jnt.
78
Innervation of Pectineus m.
Femoral n.
79
O of Adductor Brevis m.
Inferior ramus of pubis
80
I of Adductor Brevis m.
Superior half of linea aspera of femur
81
Action of Adductor Brevis m.
Adduction & flexion at thigh at hip jnt., rotates thigh
82
Innervation of Adductor Brevis m.
Obturator n.
83
O of Adductor Longus m.
Pubic crest & symphysis pubis
84
I of Adductor Longus m.
Linea aspera femur
85
Action of Adductor Longus m.
Adduction & flexion at thigh at hip jnt., rotates thigh
86
Innervation of Adductor Longus
Obturator n.
87
O of Adductor magnus m.
Inferior ramus of pubis & ischium to ischial tuberosity
88
I of Adductor magnus m.
Linea aspera of femur
89
Action of Adductor magnus m.
Adduction of thigh at hip jnt.-anterior fibers flex thigh & posterior fibers extend thigh, rotates thigh
90
Innervation of Adductor magnus m.
Obturator & sciatic n.
91
The Adductor minimus m. is part of which muscle
Adductor magnus m.
92
O of Adductor minimus m.
Inferior ramus of pubis
93
I of Adductor minimus m.
Medial lip of linea aspera of femur
94
Action of Adductor minimus m.
Adduction and lateral rotation of thigh at hip jnt.
95
Innervation of Adductor minimus m.
Obturator n.
96
O of Gracilis m.
Body & inferior ramus of pubis
97
I of Gracilis m.
Proximal, medial surface of shaft of tibia
98
Action of Gracilis m.
Adduction of thigh at hip jnt., flexion and medial rotation of leg at knee jnt.
99
Innervation of Gracilis m.
Obturator n.
100
Describe what is unique about adductors
They cross the thigh from anterior origin to posterior insertion. & They laterally rotate the hip jnt. when the foot is off the ground, but medially rotate when the hip jnt. when the foot is on the ground.
101
O of long head of Biceps femoris m.
Ischial tuberosity
102
O of short head of Biceps femoris m.
Linea aspera of femur
103
I of Biceps femoris m.
Head of fibula and lateral condyle of tibia
104
Action of Biceps femoris m.
Flexion of leg at knee jnt. & extension of thigh at hip jnt.
105
Innervation of Biceps femoris m.
Sciatic n. (tibial & common fibular n.)
106
O of Semi-tendinosus m.
Ischial tuberosity
107
I of Semi-tendinosus m.
Proximal, medial surface of shaft of tibia
108
Action of Semi-tendinosus m.
Flexion of leg at knee jnt., & extension of thigh at hip jnt.
109
Innervation of Semi-tendinosus m.
Sciatic n. (tibial n.)
110
O of Semi-membranosus m.
Ischial tuberosity
111
I of Semi-membranosus m.
Medial condyle of tibia
112
Action of Semi-membranosus m.
Flexion of leg at knee jnt. & extension of thigh at hip jnt.
113
Innervation of Semi-membranosus m.
Sciatic n. (tibial n.)
114
O of Tibialis anterior m.
Lateral condyle and shaft of tibia & interosseus membrane
115
I of Tibialis anterior m.
1st metatarsal & 1st cuneiform
116
Action of Tibialis anterior m.
Dorsiflexion & inversion of foot
117
Innervation of Tibialis anterior m.
Deep fibular (peroneal) n.
118
O of Extensor hallus longus m.
Anterior surface of fibula & interosseous membrane
119
I of Extensor hallucis longus m.
Distal phalanx 1st toe
120
Action of Extensor hallus longus m.
Dorsiflexion of foot & extension of 1st toe
121
O of Extensor digitorum longus m.
Lateral condyle of tibia, anterior surface of fibula & interosseous membrane
122
I of Extensor digitorum longus m.
Middle & distal phalanges of toes 2-5
123
Action of Extensor digitorum longus m.
Dorsiflexion of foot & extension of digits 2-5
124
Innervation of Extensor digitorum longus m.
Deep fibular (peroneal) n.
125
O of Fibularis (peroneus) tertius m.
Distal 1/3 of fibula & interosseous membrane
126
I of Fibularis (peroneus) tertius m.
Base of 5th metatarsal
127
Action of Fibularis (peroneus) tertius m.
Dorsiflexion & eversion of foot
128
Innervation of Fibularis (peroneus) tertius m.
Deep fibular (peroneal) n.
129
O of Gastrocnemius m. (Lateral and medial heads)
Lateral and medial condyles of femur
130
I of Gastrocnemius m.
Calcaneus by way of calcaneal (Achilles) tendon
131
Action of Gastrocnemius m.
Plantarflexion of foot ankle jnt. & flexion of leg at knee jnt.
132
Innervation of Gastrocnemius m.
Tibial n.
133
O of Soleus m.
Head of fibula & soleal line of tibia
134
I of Soleus m.
Calcaneus by way of calcaneal (Achilles) tendon
135
Action of Soleus m.
Plantarflexion of foot at ankle jnt.
136
Innervation of Soleus m.
Tibial n.
137
O of Plantaris m.
Lateral supracondylar ridge of femur
138
I of Plantaris m.
Calcaneus by way of calcaneal (Achilles) tendon
139
Action of Plantaris m.
Plantarflexion of foot at ankle jnt. & flexion of leg at knee jnt.
140
Innervation of Plantaris m.
Tibial n.
141
O of Popliteus m.
Lateral condyle of femur
142
I of Popliteus m.
Proximal tibia-above popliteal line
143
Action of Popliteus m.
Flexion & medial rotation of the leg at knee jnt.; unlocking of extended knee
144
Innervation of Popliteus m.
Tibial n.
145
O of Tibialis posterior m.
Posterior tibia, posterior fibula & interosseous membrane
146
I of Tibialis posterior m.
Navicular, cuboid, 3 cuneiforms & base of metatarsals 2-4
147
Action of Tibialis posterior m.
Plantarflexion & inversion of foot at ankle jnt.
148
Innervation of Tibialis posterior m.
Tibial n.
149
O of Flexor digitorum longus m.
Posterior surface of tibia
150
I of Flexor digitorum longus m.
Distal phalanges of toes 2-5
151
Action of Flexor digitorum longus m.
Flexion of digits 2-5 & plantarflexion of foot at ankle jnt.
152
Innervation of Flexor digitorum longus m.
Tibial n.
153
O of Flexor hallucis longus m.
Distal 2/3 of fibula
154
I of Flexor hallucis longus m.
Distal phalanx of 1st toe
155
Action of Flexor hallucis longus m.
Flexion of 1st toe & plantarflexion of foot
156
Innervation of Flexor hallucis longus m.
Tibial n.
157
O of Fibularis longus m. (Lateral & medial heads)
Head & proximal 2/3 of fibula
158
I of Fibularis longus m.
1st metatarsal & 1st cuneiform
159
Action of Fibularis longus m.
Plantarflexion & eversion of foot at ankle jnt.
160
Innervation of Fibularis longus m.
Superficial fibular (peroneal) n.
161
O of Fibularis brevis m.
Distal 2/3 shaft of fibula
162
I of Fibularis brevis m.
Base of 5th metatarsal
163
Action of Fibularis brevis m.
Plantarflexion & eversion of foot at ankle jnt.
164
Innervation of Fibularis brevis m.
Superficial fibular (peroneal) n.
165
Innervation of Extensor digitorum brevis m.
Deep peroneal n.
166
Innervation of Extensor hallucis brevis m.
Deep peroneal n.
167
Innervation of Flexor digitorum brevis m.
Medial plantar n.
168
Innervation of Abductor hallucis m.
Medial plantar n.
169
Innervation of Abductor digiti minimi m.
Lateral plantar n.
170
Action of Quadratus plantae m.
Flexion of toes 2-5
171
Innervation of Quadratus plantae m.
Lateral plantar n.
172
Action of Lumbricals m.
Flexion of proximal phalanges, extension of middle & distal phalanges of toes 2-5
173
Innervation of Lumbricals m.
Medial & lateral plantar n.
174
Innervation of Flexor hallucis brevis m.
Medial plantar n.
175
Innervation of Adductor hallucis (Oblique & transverse head) m.
Lateral plantar n.
176
Innervation of Flexor digiti minimi brevis m.
Lateral plantar n.
177
Action of Dorsal interossei (4) m.
Abduction of toes
178
Innervation of Dorsal interossei (4) m.
Lateral plantar n.
179
Action of Plantar interossei (3) m.
Adduction of toes
